AI agents call maple_marketplace_connected_apps to retrieve information from Maple without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and lists existing marketplace app integrations without creating, modifying, or deleting data. It is purely informational/read-only access with minimal security impact. The blast radius of misuse is low (information disclosure of app names/connections), not comparable to execution, modification, or destructive operations.
From the tool's definition Tool name contains 'List' prefix behavior; description explicitly states 'List currently connected marketplace apps' — this is a query/enumeration operation with no modification.
Attacks that exploit this kind of access
List currently connected marketplace apps registered in Maple. It is categorised as a Read tool in the Maple MCP Server, which means it retrieves data without modifying state.
Register the Maple MCP server in PolicyLayer and add a rule for maple_marketplace_connected_apps: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Maple. Nothing to install.
maple_marketplace_connected_apps is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the maple_marketplace_connected_apps rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for maple_marketplace_connected_apps. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
maple_marketplace_connected_apps is provided by the Maple MCP server (omar2001ramadan/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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